FOR PLATO USERS...

Type the correct answers :

A skin specialist told Anna that if she wanted good skin, she should eat more foods that contain vitamin C. How does vitamin C keep skin healthy?

A. Vitamin C produces amino acids to help build collagen.
B. Vitamin C helps metabolize carbohydrates faster.
C. Vitamin C produces a coenzyme that helps produce collagen.
D. Vitamin C produces myelin.

Which substance facilitates chemical reactions?

A. substrate
B. enzyme
C. lysosome
D. product

A chemical reaction removes an atom of oxygen from carbon dioxide to create carbon monoxide. What part of the chemical reaction is carbon monoxide?

A. substrate
B. active site
C. enzyme
D. product

Match the terms related to enzyme actions with their descriptions.

Substrate / Active Site / Product / Catalyst
(a) (b) (c) (d)

__The initial substance in a chemical
reaction that is changed

__The substance that speeds up or helps
chemical reactions to occur

__The location on an enzyme where
the initial substance reacts

__The end substance that results from
a chemical reaction

What is the function of an enzyme?

An enzyme acts as a ________because it speeds up the rate or ease at which a chemical reaction occurs.


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